package cn.hongwei.mapper;

import cn.hongwei.pojo.Stock;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Param;

/**
 * @Entity generator.pojo.Stock
 */
public interface StockMapper extends BaseMapper<Stock> {

    void reduce(@Param("productId") Integer productId);
}




